f3_chapter 1.doc

7/26/2019 f3_chapter 1.doc

1/7

CHAPTER 1 RESPIRATIONSUBJECTIVE QUESTIONS1.1 Human Breathing Mechani m

1 Label the human respiratory systems structure using thewords given.

(a)

(b)

(c)

(d)

(e) (f)

(h)

(g)

1.! Tran "#rt #$ O%&gen in the Human B#'&

2 Fill in the blanks correctly.(a) The e change o! o ygen and carbon dio ide occurs in

the """""""""""" by di!!usion.

(b) """"""""""""" is a comple molecule consisting o!iron and protein that gives blood its red colour.(c) # ygen combines with haemoglobin in red blood cells

to !orm """""""""""""" .(d) $aemoglobin picks up carbon dio ide !rom the bodies

cells to transports them back to the """""""""" where

%iaphragm &asal cavity 'ronchus lveolus Lung 'ronchioles Trachea 'lood capillaries


2/7

the carbon dio ide is e haled.(e) The o ygen dissolves in the moist lining o! the alveolus

and then """"""""" into the blood capillaries.

1.( The Im"#rtance #$ a Hea)th& Re "irat#r& S& tem

*atch the types o! disease to the human respiratory systemwith its symptoms.

T&"e #$ 'i ea e(a) +neumonia

(b) ,n!luen-a(c) mphysema(d) 'ronchitis

(e) Lung cancer

OBJECTIVE QUESTIONS1.1 Human Breathing Mechani m

1 %iagram 1 shows a part o! the human respiratory system.

Diagram 1

/hich o! the !ollowing is not true0,t has a thin wall

' ,t has a moist sur!ace

S&m"t#mFever chest pain cough that brings upmucus

hest pain high !ever cough%i!!iculty in breathing+ersistent cough weight loss coughingup blood chest pain

hill !ever headache aches


3/7

,t is surrounded by capillary% ,t reduces the sur!ace area !or o ygen di!!usion

2 The in!ormation shows the characteristics o! structure 3 !orthe human respiratory system.

/hat is structure 30'ronchus %iaphragm

' 'ronchioles % ,ntercostal muscles

1.! Tran "#rt #$ O%&gen in the Human B#'&

%iagram 2 show the process o! gas e change in the lungs.

Diagram 2

K

L

/hat are 4 and L0

* + # ygen arbon dio ide

' arbon dio ide # ygen &itrogen # ygen

% &itrogen arbon dio ide

5mall branches inside the lungst the end o! these tubes are the alveoli


4/7

1.( The Im"#rtance #$ a Hea)th& Re "irat#r& S& tem

6 /hich o! the !ollowing is not caused by smoking0'ronchitis 5ore throat

' $epatitis ' % Lung cancer

7 %iagram shows an e periment that displays the e!!ects o!smoking on the lungs.

Glowingcigarett e

Moistcotton

Bicarbon ateindicator

Pump

Thermometer

Diagram 3

/hat can be observed during the e periment0, The temperature o! the thermometer increases,, The bicarbonate indicator is turned into yellow,,, /hite cotton is turned into brownish with black spots

, and ,, only ,, and ,,, only' , and ,,, only % , ,, and ,,,

REVISION

1 /hich o! the !ollowing comparison between inhaling ande haling are correct0

Inha)ing E%ha)ing, Thoracic cavity becomes

biggerThoracic cavity becomes smaller

,, ir is !orced into the lungs ir is !orced out o! the lungs,,, ir pressure inside the lungs ir pressure inside the lungs is


5/7

is lowered increased

, and ,, only ,, and ,,, only ' , and ,,, only % , ,, and ,,,

2 /hen the muscles o! the diaphragm contractthe ribs are raised

' the ribs are e pandedair is pushed out o! the ribs

% the diaphragm becomes !lat

%uring the respiration process !ood is o idised by o ygen to produce carbon dio ide water and energy. nergy is used to

do work ' warm the body

breathe and move% do work and warm the body

6 /hich o! the !ollowing shows the path taken by air as it

!lows into the lungs0 Trachea 'ronchus 'ronchiole lveolus ' lveolus Trachea 'ronchus 'ronchiole 'ronchus 'ronchiole lveolus Trachea % 'ronchiole lveolus Trachea 'ronchus

7 %iagram 1 shows an e periment that displays the e!!ect o!smoking on human lungs.


6/7

Glowing

cigarett e Moistcotton

Bicarbon ateindicator

Pump

Thermometer

Diagram 1

/hich o! the !ollowing is not true0igarette smoke is acidic

' The moist cotton turns brownThe temperature remains unchanged

% The indicator solution changes !rom red to yellow

8 %iagram 2 shows a part o! the human respiratory system.

Diagram 2

/hich o! the !ollowing is not a characteristic o! this part0Thin walls

' Low moisture'ig sur!ace area

% Large network capillaries

9 %iagram shows a blood capillary carrying blood to the bodycells.


7/7

P

Q

Body cel l

Blood capillary

Diagram 3

(a) &ame the label o! + and :.+ ; """"""""""""""""" : ; """""""""""""""""

(b) /hat is a product !ormed when o ygen combines with

haemoglobin in red blood cells0 """""""""""""""""""""""""""""""""""""""""""

(c) 5tate three substances that are !ound in cigarette smoke.

"""""""""""""""""""""""""""""""""""""""""" """""""""""""""""""""""""""""""""""""""""" """"""""""""""""""""""""""""""""""""""""""

Documents

f3_chapter 1.doc